Roof flashing



Aug. 3

J. E. ALBINSON ROOF FLASHING Fiied Sept. 18. 1925 WXTNESSES INVENTOR v tsetse JAMES ALBIINSON, 0F VVASHINGTQN, DISTRICT OF COLUMBIA.

ROOF FLAEJIEING.

Application filed September 18, 1925. Serial No. 57,137.

The invention relates to a roof flash double hub particularly designed for use in connection with vent pipes. It is well known to those skilled in the art that the expansion and contraction of a vent pipe or the settling of the roof through which the vent pipe extends soon breaks the connection between the pipe and the ordinary fiashing employed, with the result that leaks occur and constant repairing is necessary.

One of the objects of the present invention is to provide a flashing which permits movement of the vent pipe or settling of the roof through which the pipe extends without breaking the connection between the pipe and flashing or producing leaks.

A further object of the present invention is to provide a vent pipe flashing with certain improvements therein, whereby an ab solutely water tight connection between the roof and the vent pipe is secured.

A further object of the present invention is to provide a flash double hub designed to extend a vent pipe if necessary after passing through the roof or for joining two pipes together after flash hub has been caulked on pipe and means adapted to receive and support and center an upper e: tension, of said vent pipe.

A. further object of the present invention is to provide a de ics of this character, which is simple, durable in use and cheap to manufacture.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit of the invention.

Reference is to be had to the accompanying drawing, forming a part of this specification, it being understood that the drawings are merely illustrative of some examples of the invention.

Figure 1 is a side elevation of a portion of a vent pipe having the present improvements combined therewith.

Figure 2 is a vertical section through the flashing and the connection between it and the vent pipe.

Figure 3 is a plan View taken on the line 33 of Figure 2.

Throughout the drawings like reference characters indicate like parts.

Referring to the drawings more particularly 1 designates a frusto conical flashing of a roof, through which a vent pipe 2 is V wardly extending annular flange or ring 7.

A plurality of fingers 8, the lower ends of which are fastened by means of screws 9 to the flange 7, are provided within the double hub The other ends of said fingers are fastened by screws 11 to an annular ring 10, which is adapted to rest upon the upper portion of the vent pipe 2 and thus support the double hub on the pipe. An annular ring 12 having an inclined upper surface 13 and a depending portion 16 is adapted to fit around and rest uponthe annular ring for the purpose of supporting and centering an upward extension of the vent pipe (notshown). A plurality of hub openingsor lips 14 are formed intermediate the portions l and 5 of the double hub 3. Through the lips or openings 14 the lead joint 15 may be poured after the joint has been yarned. These openings are positioned below the level of the uppermost surface of the vent pipe 2 so that in pouring the joint no lead will overflow into said vent pipe.

In assembling the joint, the double hub is slipped over the vent pipe and onto the flashing. the lower tapered portion of the hub receiving the upper portion of the flash ing. The space between the portion of the hub directly above the inwardly extending flange 7 and the vent pipe is then filled with oakum or other packing material and upon which a layer of lead as indicated at 15 is Y poured through the hub openings or lips 14.

Should it be desirableto extend the vent pipe upward, the ring 13 may be positioned on the ring 10 and an upper extension of vent pipe (not shown) su nported and centered on said ring. properly assembled, and obviously, should the vent pipe 2sway relative to the roof structure, or should the roof structure settle,

Thus t e parts are held 7 no break would occur between the flashing and the vent pipe but, instead, the lower portion of the double hub would at all times constitute a water shed and prevent leakage. I

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. The combination with a tubular flashing tapered upwardly, and a vent pipe extending through said flashing, of a double hub adapted to lit over said vent pipe, the lower portion or said double hub being tapered to lit over and housethe upper portion of said flashing, said lower tapered portion terminating at its upper end in an inwardly extending annular flange, and means on said hub for supporting the same on the vent pipe, said hub being provided with a plurality of openings intermediate its ends for permitting the pouring of the joint between tl:e hub and the vent pipe.

2. The combination with a tubular flashing tapered upwardly, and a vent pipe extending through said flashing, of a double hub adapted to fit over and be supported by said vent pipe, the interior surface of the lower portion 01" said hub being tapered and adapted to tit over and house the upper portion of said flashing, said tapered portion of the hub terminating in an inwardly extending annular flange at its upper end, means on said hub for supporting the same on the vent pipe, said hub being provided with a plurality of openings intermediate its ends, and an annular ring being substantially T shaped in cross section, the upper surface of which is inclined inwardly, adapted to be placed within the hub for centering and supporting an upward extension of the vent pipe.

3. The combination with a tubular flashing tapered upwardly, and a vent pipe extending through and fitting snugly within the reduced end of the flashing, of a double hub adapted to fit over and be supported by said vent pipe and terminating at its lower end in a tapered portion adapted to house and fit snugly upon the upper portion of said flashing, said lower tapered portion of the hub terminating at its upper end in an inwardly extending annular flange the internal diameter of which equals the external diameter of saidvent pipe, and means for supporting said hub on said vent pipe, said means comprising an annular ring adapted to rest upon the upper surface of said vent pipe and a plurality of lingers, the lower ends of said fingers being fastened to the inwardly extending flange and the upper ends of said lingers being fastened to said annular ring, said hub being provided with a plurality of openings intermediate its ends, said ooenings being positioned below the level of the uppermost portion oit' said pipe. at. The combination of a tubular flashing, and a vent pipe extending through said flashing, a double hub adapted to lit over said vent pipe, the lower portion of said double hub being tapered to fit over and house the upper portion of said flashing, said lower tapered portion terminating at its upper end in an inwardly extending annular flange, means normally resting upon said vent pipe, and means detachably connecting said hub and said first means for supporting the same on the vent pipe.

5. The combination with a tubular flashing, and a vent pipe extending through said flashing, a double hub adapted to tit over said vent pipe, the lower portion of said double hub normally fitting over and housing the upper portion of said flashing, said lower portion terminating at its upper end in an inwardly ext-ending annular flange, an annular ring normally resting upon the up per end of a vent pipe and circumterentially spaced means on said hub and removably connected with said ring for supporting the same upon the vent pipe.

6. The combination of a tubular flashing, and vent pipe extending through said flashing, with a double hub adapted to fit over said vent pipe, the lower portion of said double hub normally iitting over and housing the upper portion of said flashing, said lower portion terminating at its upper end in inwardly extending annular flange, and means on said hub for support ing the same upon the vent pipe, said hub being provided with an opening intermedi ate its ends for permitting the pouring of the joint between the hub and the vent pipe.

In testimony whereof I aflix my signature.

JAMES E. ALBINSON. 

